Availability
FORD DSS Racing Engines & Components
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore
Part Number: DMS-K1-3520-4030
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.040 bore
Part Number: DMS-K1-3520-4040
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore
Part Number: DMS-K1-3520-4060
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.000 bore
Part Number: DMS-K1-3521-4000
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.030 bore
Part Number: DMS-K1-3521-4030
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.040 bore
Part Number: DMS-K1-3521-4040
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.060 bore
Part Number: DMS-K1-3521-4060
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, 393W / 5.8 Clevor Stroker SBF 351W K1-FX Series -31cc Dish Top Boss/Canted Piston Set. 4.000 bore
Part Number: DMS-K1-3524-4000
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, 393W / 5.8 Clevor Stroker SBF 351W K1-FX Series -31cc Dish Top Boss/Canted Piston Set. 4.030 bore
Part Number: DMS-K1-3524-4030
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, 393W / 5.8 Clevor Stroker SBF 351W K1-FX Series -31cc Dish Top Boss/Canted Piston Set. 4.040 bore
Part Number: DMS-K1-3524-4040
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, 393W / 5.8 Clevor Stroker SBF 351W K1-FX Series -31cc Dish Top Boss/Canted Piston Set. 4.060 bore
Part Number: DMS-K1-3524-4060
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Piston Set. 4.000 bore
Part Number: DMS-K1-3525-4000
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Piston Set. 4.030 bore
Part Number: DMS-K1-3525-4030
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Piston Set. 4.040 bore
Part Number: DMS-K1-3525-4040
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series +7.5cc Dome Top Cleveland Open & Closed Chamber Piston Set. 4.060 bore
Part Number: DMS-K1-3525-4060
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, 351W / 5.8 SBF 351W K1-FX Series -4cc Flat Top Inline Piston Set. 4.000 bore
Part Number: DMS-K1-3550-4000
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore
Part Number: DMS-K1-3870-4000
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore
Part Number: DMS-K1-3870-4030
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
PISTONS
Part Number: DMS-K1-3870-4040
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore
Part Number: DMS-K1-3870-4060
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.000 bore
Part Number: DMS-K1-3871-4000
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.030 bore
Part Number: DMS-K1-3871-4030
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.040 bore
Part Number: DMS-K1-3871-4040
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -13cc Dish Top Boss/Canted Piston Set. 4.060 bore
Part Number: DMS-K1-3871-4060
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
PISTON AND RING KIT
Part Number: DMS-K1-3875-4000
Not Yet Reviewed
Estimated Ship Date: Feb 11, 2026 if ordered today
Estimated Ship Date: Feb 11, 2026 if ordered today
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